import { defineStore } from 'pinia';
import router, { constantRoutes, dynamicRoutes } from '@/router';
import store from '@/store';
import { getRouters } from '@/api/menu';
import auth from '@/plugins/auth';
import Layout from '@/layout/index.vue';
import ParentView from '@/components/ParentView/index.vue';
import InnerLink from '@/layout/components/InnerLink/index.vue';
import { ref } from 'vue';
import { createCustomNameComponent } from '@/utils/createCustomNameComponent';

// 匹配views里面所有的.vue文件
const modules = import.meta.glob('./../../views/**/*.vue');
export const usePermissionStore = defineStore('permission', () => {
	const routes = ref([]);
	const addRoutes = ref([]);
	const defaultRoutes = ref([]);
	const topbarRouters = ref([]);
	const sidebarRouters = ref([]);

	const getRoutes = () => {
		return routes.value
	};
	const getDefaultRoutes = () => {
		return defaultRoutes.value
	};
	const getSidebarRoutes = () => {
		return sidebarRouters.value
	};
	const getTopbarRoutes = () => {
		return topbarRouters.value
	};

	const setRoutes = (newRoutes) => {
		addRoutes.value = newRoutes;
		routes.value = constantRoutes.concat(newRoutes);
	};
	const setDefaultRoutes = (routes) => {
		defaultRoutes.value = constantRoutes.concat(routes);
	};
	const setTopbarRoutes = (routes) => {
		topbarRouters.value = routes;
	};
	const setSidebarRouters = (routes) => {
		sidebarRouters.value = routes;
	};
	const generateRoutes = async () => {
		const res = await getRouters();
		const { data } = res;
		const sdata = JSON.parse(JSON.stringify(data));
		const rdata = JSON.parse(JSON.stringify(data));
		const defaultData = JSON.parse(JSON.stringify(data));
		const sidebarRoutes = filterAsyncRouter(sdata);
		const rewriteRoutes = filterAsyncRouter(rdata, undefined, true);
		const defaultRoutes = filterAsyncRouter(defaultData);
		const asyncRoutes = filterDynamicRoutes(dynamicRoutes);
		asyncRoutes.forEach((route) => {
			router.addRoute(route);
		});
		setRoutes(rewriteRoutes);
		setSidebarRouters(constantRoutes.concat(sidebarRoutes));
		setDefaultRoutes(sidebarRoutes);
		setTopbarRoutes(defaultRoutes);
		// 路由name重复检查
		duplicateRouteChecker(asyncRoutes, sidebarRoutes);
		return new Promise((resolve) => resolve(rewriteRoutes));
	};

	/**
	 * 遍历后台传来的路由字符串，转换为组件对象
	 * @param asyncRouterMap 后台传来的路由字符串
	 * @param lastRouter 上一级路由
	 * @param type 是否是重写路由
	 */
	const filterAsyncRouter = (asyncRouterMap, lastRouter, type = false) => {
		return asyncRouterMap.filter((route) => {
			if (type && route.children) {
				route.children = filterChildren(route.children, undefined);
			}
			// Layout ParentView 组件特殊处理
			if (route.component?.toString() === 'Layout') {
				route.component = Layout;
			} else if (route.component?.toString() === 'ParentView') {
				route.component = ParentView;
			} else if (route.component?.toString() === 'InnerLink') {
				route.component = InnerLink;
			} else {
				route.component = loadView(route.component, route.name);
			}
			if (route.children != null && route.children && route.children.length) {
				route.children = filterAsyncRouter(route.children, route, type);
			} else {
				delete route.children;
				delete route.redirect;
			}
			return true;
		});
	};
	const filterChildren = (childrenMap, lastRouter) => {
		let children = [];
		childrenMap.forEach((el) => {
			el.path = lastRouter ? lastRouter.path + '/' + el.path : el.path;
			if (el.children && el.children.length && el.component?.toString() === 'ParentView') {
				children = children.concat(filterChildren(el.children, el));
			} else {
				children.push(el);
			}
		});
		return children;
	};
	return {
		routes,
		topbarRouters,
		sidebarRouters,
		defaultRoutes,

		getRoutes,
		getDefaultRoutes,
		getSidebarRoutes,
		getTopbarRoutes,

		setRoutes,
		generateRoutes,
		setSidebarRouters
	};
});

// 动态路由遍历，验证是否具备权限
export const filterDynamicRoutes = (routes) => {
	const res = [];
	routes.forEach((route) => {
		if (route.permissions) {
			if (auth.hasPermiOr(route.permissions)) {
				res.push(route);
			}
		} else if (route.roles) {
			if (auth.hasRoleOr(route.roles)) {
				res.push(route);
			}
		}
	});
	return res;
};

export const loadView = (view, name) => {
	let res;
	for (const path in modules) {
		const viewsIndex = path.indexOf('/views/');
		let dir = path.substring(viewsIndex + 7);
		dir = dir.substring(0, dir.lastIndexOf('.vue'));
		if (dir === view) {
			res = createCustomNameComponent(modules[path], { name });
			return res;
		}
	}
	return res;
};

// 非setup
export const usePermissionStoreHook = () => {
	return usePermissionStore(store);
};


/**
 * 检查路由name是否重复
 * @param localRoutes 本地路由
 * @param routes 动态路由
 */
function duplicateRouteChecker (localRoutes, routes) {
	// 展平
	function flatRoutes (routes) {
		const res = [];
		routes.forEach((route) => {
			if (route.children) {
				res.push(...flatRoutes(route.children));
			} else {
				res.push(route);
			}
		});
		return res;
	}

	const allRoutes = flatRoutes([...localRoutes, ...routes]);

	const nameList = [];
	allRoutes.forEach((route) => {
		const name = route.name.toString();
		if (name && nameList.includes(name)) {
			const message = `路由名称: [${name}] 重复, 会造成 404`;
			console.error(message);
			ElNotification({
				title: '路由名称重复',
				message,
				type: 'error'
			});
			return;
		}
		nameList.push(route.name.toString());
	});
}
